Fabric for gaskets



Oct. 25, 1927.

1,646,466 E. J. TRAINOR FABRIC FOR GASKETS Filed Sept. 9, 1921 Jul;

MVENTOR Patented 'oce 251927. I J I r 1,646,466 UNITED STATES P-A I'ENTOFF-ICE.

EDWARD J. ritluNon, or BROOKLYN, NEW. YORK,'ASSIGNOR ro ASBESTOSSPINNING AND WEAVING CORPORATION, on NEW, YonK, N. Y., A CORPORATION onNEW YORK.

FABRIC FOB GASKETS. Application filed September 9, 1921. Serial Ito.499,558.

My invention relates to gaskets or similar increase the tensile strengthof the asbestos packing s' adapted to withstand relatively strands andprevent their fraying upon the high temperatures and pressures, and tosurface and produce a woven fabric of great fabrics of which suchgaskets or similar uniformity of thickness, packings may be made."lhewoven fabric may be" cut into gaskets so In the preferred form of myinvention the of any desired shape and when so cut will asket or similarpacking is made of a fabric not fray along the edges and will there-'which comprises a woven material composed fore require no binding atthejedges and of asbestos or other heat-resisting fiber will be stiffenough to hold their shape when wound about a @re of lead orotherreadily cut in complicated forms. By suitably e5 deformable wireinterwoven with cross wires choosing the weave with respect to thepresof a suitable metal, the choice of which desures to be encountered,the gasket thus pends upon the use to which the gasket is formed willresist blowing out in narrow to be put. In this construction the strandssections to a high degree. Should it be 5 in one direction, as forinstance the warp, desired to calender the gasket with 'rubberjz'o arebare wires and those in the opposite dior other material, the uniformityof the rection are composite or cored strands, dethickness of the gasketand its stiffness renscribed above. der it easy to coat, since it willnot adhere In the drawings 1 have shown in to the rolls during thecoating operation, Figure 1 a front view of a piece of the but on thecontrary will act as a guide for 75 gasket material described above, inthe coating material and-will thereforebe Figure 2 a sectional view, andin free from blow holes or uncoated portions.

Figure 3 a detail perspective view of the A gasket made according to myinvention cored asbestos strand from which the matepresents a greateruniformity of thickness It will be understood that the choice of and dueto the incorporation in it of the de-. wire, the closeness of the weave,the thickformable lead 'wire and its uniformity in ness of the strands,and the material from thickness will produce a very tight joint. whichthe fibrous strand is made will de- In he case of stuffing boxes orother simifiend upon the use to which the material is to lar situationsthe cored asbestos strand alone 86 4 e ut, and it will al o b understoodthat may be used, as w11l be readily-understood. in cases in which itis-undesirabIe to use a It W111 e noted that fabric f Whi h wovenmaterial, as for instance in packing the gasket lspreferably made" 0 P Istufling boxes, the cored asbestos or other h examp e g ve above, a SetOf WB-I fibrous strand may be used without being threads (here the metalstrands or wires woven into a fabric with the bare wires. and a set ofweft threads (here the leador Referring to thedrawings, it will be seequivalent wire-cored asbestos or other fabthat the cored asbestosstrand comprises a a h hr of the two sets becore 1 of lead or othersuitable deformable 111g 0 Interwoven that he me al ds 0 material aboutwhich is twisted a plurality the one Set are in c10se c1amp1ng C ntact95 of fibers 2, such as asbestos or other similar y Wlth the fabric, v g0f the rand material. In making a cored strand :the 0f the o h r- Iasbestos or other material is first twisted into I W111 be Y S fhfl ylnvenfilon may strands of suitable thickness and a plurality be greatlyVar1ed without departmg from of such strands isf 'wound about the wirecom he splr t of my mvention, and I do not 00 ter. The cored strand thusformed is woven i nfi myself 0 the prec se deinto a fabric with baremetallic warp wires tallS h n h descrlhed.

3 which may be of any suitable material as W t I m 181 for instancesteel, bronze, Monel metal, etc, 1- Ap klng c mprls ngwire Warp strandsdepending upon the use to which the Igasket and weft strands, theweftstrands each con- 105 is to be put. The construction-is suc thatsisting of a metallic coreand a twisted asthe warp wires lying onopposite sides of the bestos ya n wrapped about the core in confibrousweft clamp the fibers of the weft' volutlons, the wire warp strandsbeing under into intimate contact with one another and suflicienttension toclamp the weft strands with the soft metal core and thusgreatly only at the points of contact sufficiently to no rial is made.than either molded or other woven gaskets so prevent the relativemovement .of the weft cores and the surrounding fibrous material wherebythe balance of the fibrous material located between 5 paratively loose.I

2. A packing comprising deformable wire warp strands and weft strands,-the weft strands each consisting of a deformable metallic core and atwisted asbestos yarn wrapped about the core in convolutions; the wirewarp strands being under s'uflicient ten sion to clamp the weftstrands-only at the pointsof contact sufiiciently to prevent therelativemovement of the weft cores and the surrounding fibrous materialwhereb) the the warp strands is com balance of the fibrous materiallocated be- {tween the warp strands is comparatively oose. V

3.11 packing comprising wire warp strands and weft strands, the Weftstrands consisting of deformable wire and twisted brous yarn wrappedabout the wire in convolutions, said warp strands being under suchtension as to deform the wire of the weft strands and clamp the fibrousyarn thereto, but insure the comparative looseness of the fibrousmaterial between the warp strands.

In testimony whereof, I'have signed my name to thisspecification this18th day of 30 August, 1921.

EDWARD J. TRAINOR.

